When you get la leading stock like AAOI suddenly collapsing it suggests to me that there are more air pockets that will burst.
And look at INGN
I know that the trend in the averages remains up. But with so many stocks collapsing as they announce earnings, I think that we will have a rough post earnings period coming up. September can be a cruel month for bulls. I remain in cash in my trading accounts but 100% invested in my university pension.